Fire extinguisher



Sept.. ll, 1923.

- w. J. FRISBIE FIRE EXTINGUISHER 2 Sheets-Sheet ,2

FilednFeb. 8, 1922 QH Hm..

Patented Sept. 11, 1923..

urrED s'rIEs PAI furia;

WILLIAM J. rItIsBIE, or CHICAGO, ILLINOIS, AssIGNORmO .I US'IRITNNIANUFACTUR.- ING COMPANY, or CHICAGO, ILLINOIS, A CORPORATION or' ILLINOIS.

FIRE IEX'lINGrlIl'ISI-IER.

. ,Application filed February 8, 1922. Serial NO.\535,021.

To all whom z't may concern.'

Be it known that'I, VILLIAM J. FRISBIE, a citizen of the United States, and a resident of Chicago, inthe county of Cook and State of Illinois, have invented certain new and useful Improvements invFire Extinguishers, of which thefollowing is a speciiication.

My invention relates to ire extinguishers, particularlyto the small portable type which are used in automobiles or distributed around buildings to bereadily carried in the hand and quickly operated.

One of the importantobjects of the invention is to provide novel arrangement of the air pump relative to the fluid reservoir to produce a shape which will enable the extinguisher to be morereadily handled and more eiiiciently manipulated. Another important obje-ct otmyinvention. is to so arrange the air pump that none of its operating parts will be within the reservoir but willbe at all times away from the Huid which is usuallyA carbon-tetrachloride. Another important object of the invention is to provide for positive shut-oil of the air andV also theliuid, all valves and joints being made air tight and of material which will not be vacted uponby the fluid, thus preventing leakage and evaporation otthefiuid. The above and other features of my invention are incorporated in the fire extinguisher illustrated on the accompanying drawing, on which- Fig. 1 is a sideelevational view,

Fig. 2 is a top view,

Fig. 3 is an end view,

Fig. 4 is an enlarged vertical sectional view, the air pump being in diametral section and the reservoir part in section on plane 4 4 Fig. 5, and

Fig. 5 is a sectional view on plane 5 5 Fig. 4.

In accordance with my invention the air pump P is at the top of the extinguisher body or reservoir R, the body receiving the intermediate part of the pump and being of a width and-height to provide the necessary capacity for lire extinguishing luid. At the front of the body and below the pump is the strap or handle'I-I by means of which the extinguisher can be readily and accuratelyheld, the left hand being inserted through the strap and around the front of the body while thehaudle .I of the pump vis grasped by the right hand. Air. can then be readily pumped intol the reservoir and the extinguisher properly and accurately aimed and' directedto put out fires.

Describing irst the pump structure, it

comprises the cylindrical barrel 10 havingy the fitting 11 applied at its rear end whichforms a, bearing fory the tubular piston rod l2. The handle I .is secured to they piston rod and has the locking tongues 13 and14. for engaging behind the flange 15 on the it` ting 11 to thus lock the handle to the barrel when the device is not in use. the flange 15 lare flattened as indicated Vin Fig. 2 to be sufficiently narrowso that the. tongues can pass the flange whereupon turn-l ing of the handle 90 degrees 'will bringthe The sides of' tongues behind the flange to loclr the handle in place.

`At its inner end the pump piston rod 12 is secured to the plunger body 16 which behind its head 17 has the annular pocket 18 for receiving the expander ring 19 formed of a length of coiled spring, this `ring pressing radially against the leather plunger 2O which is secured in place by the'washer 21-k and nut 22 which. engages on the threaded exterior of the plunger body.

Within `the plunger head 17 is the plunger v alve 28 which has the -iiange 24 for control. ling the passageway 25 through the plunger body, a compression spring 26 interposed loe-- tween the valve and theend of the plunger tube 12 tending to hold thevalve away trom the passageway 2 5. When the valve is free the spring 26 will hold'it` with its flange against the wall2( .secured at the outer end ofl the plunger head 17,' this wall 'havingl pasageway'28 therethrough. Near the inner end of the plunger rodv 12 is the check valvel 29 in the form of a ball which is normallyv held against its seaty 3()` by the spring 81 ex;- tending between the ball and the perforated plate 31 secured at the end of the rod.

Secured to the outerl end of the pump barrel 10 is the pump valve body 32 whose cylindrical wall forms a continuation of the barrel and whose inner transverse wall 33 has the passageway .34 for the flow of air.

The outer edge at the passageway is conical to afford a seat for the outer vend of the, plunger valve l23 which is also conical, as

barrel the valve 23 will be held against the conical seat to close the passageway 34 for the purpose to be referred to later.

Within the pump valve body 32 is'the pump valve 35 whose guide stem36 passes through the transverse wall 37 `secured in the body 32 and having the passageway 38 therethrough. On the wall 33 and surround ing the passageway is the annular ridge 39 which forms a seat forthe pump valve,"the valve preferably having a facing 40 of lead o-r other suitable material lfor accurately engaging with the seat, the springf41 tending to hold the valve against its seat.

The outer end of the pumplvalve body 32 is closed by the transverse inner wall42 of the nozzle structure body 43 whosecylindrical wall forms a continuation of the cylindrical wall of body 32.l The body 32 with its wall-33,'and the wall 42, Vforms the air chamber 44 which is connected b y a pipe 45 with the interior oftheextinguisher reservoir R,'the pipe yextending to the top of the reservoir as shown in F ig. 4.

Describing .now thefoperation of the air pump, the handle TI is zfirst turned 90 degrecs to release vit 'fromthe'fitting ll, and

then when it is drawn -outwardly with the plunger rod 12 and plunger, the airbehind the plunger may escape from the barrel through the passageway 46 in the fitting ll.

' and air may flow into the barrel in front of v the plungerthrough the tubular plunger rod and past the check valve 29, and then through passageway 25 andpast the plunger valve 23 and through the openings 28 in the wall 27. When the plunger is drawn out the plunger valve will be released from the wall 33, but the passageway 34 to the air chamber 44 will still remain closed by the Y, pump valve 35. After the plunger has been drawn out and the pump barrel in advance of the Aplunger has beenfilled with air, the

. handle I is pushed inwardly and the air in advance of the plunger will be compressed, the pressure acting against the plunger valve 23 and forcing it back to close the passageway l25. The check valve 29 Awill also be closedduring inward travel of the plunger and the compressed air is then directed through the passageway 34 against the pump valve `35 which is opened so that the air may travel into the chamber 44and then by way of pipe 45 into the reservoir R. After several strokes of the pump there will be considerable pressure in the reservoir which will act against the liquid to force it from the reservoir out through the nozzle structure when the nozzle is open. Escape of fluid into the pump barrel is prevented by ,the pump valve '35 .and also the plunger "chamber and the pump barrel.

thepump handle is locked inits i-nner position the plunger valvey 23 will be firmly held by its spring 26 to close the adjacent end of the'passageway 34. The spring 26 also acts as a shock absorber during operation of the pump, it yabsorbing the impact when the plunger is pushed in. A shock absorber spring 47 encircles'theplunger tube'l`2ad1acent the plunger body and this spring 1s compressed against the fitting l1 when the plunger is pulled out to absorb the shock ofV impact.

The fluid `outlet pipe '48 connects at -i-ts inner end with fluid'intake mecha-nism'to' be later described, and atits outer end is counected with the chamber '49 inthe nozzle structure body 43. The transverse wall 50 is secured in the outer end of the body 43 and forms the outer 'Wall of the lchamberv49. Un its outer'side:thewall'50 has the concentric annular ridges 51 and 52for-ming valve seats, and between these ridgesthe wall has the passageways '53. The wall also'has the outwardly extending interiorly threaded flange 54-which yreceivesfthe flange 55V on the head 56 which head has the threaded opening 57 forreceiving the nozzle 58. The base 59 on the nozzle forms-a valve which has the insert l60 oflead or other suitable Vmaterial for engaging with the valve ridges or seats 5l and 52 toclose the `passageway 53. 'The nozzle has the axial passageway 6l through which the extinguishing fluidis discharged. To permit the 'nozzle tofbe readily turnedto control the discharge of `fluid a cap y62 is Lprovided whose cylindrical wall receives the nozzle structure body and whose front wall has the polygonal opening 63 `for frictionally receiving the polygonal end 64 ofthe nozzle.

The cap has the knurled ridges 65 which afford a good finger hold for -turning `the cap. When the cap is turned the nozzle, on account of itsV threaded 4engagement in opening 57, will be moved axially to v`open or/close the passageway 53. 'To prevent leakage past the nozzle a cork washer 65 is applied on the nozzle and which yis compressedrbetween the nozzle base '59 and head 56 when the nozzle valve is opened.

Describing nowithe liuid intake mechanism within the reservoir, provision is made to insureproper intake during the variouspositions of the extinguisherl when in use, it being understood that the yextinguisher is used not only to yproject horizontally, but also upwardly and downwardly. As shown in Fig. 4 the lower end of the reservoirbody is of longitudinal A,circular cross section. becuredinthis lower partsubstantiallymidway between the Vsides `of the .reservoir .is the ltrace frame 66 having the radially extending rail flange 67, the frame being secured at its upper end to a cross bar 68 secured to the sides of the reservoir as clearly shown in Fig. 4. Extendingacross the trace frame is the weight carrier frame 69 which at its lower end supports the weights 70 and 7l of lead or yother suitable heavy material. rPhe weight 70 is shown secured against one side of the carrier and the weight 7l is shown secured on the opposite side against the wings 72 deflected from the carrier which is of sheet metal, the wings being spaced away a distance to accommodate between them and the carrier body of the wheels 73 and 74 which engage with the inner edge of the rail flange, and have flanges 75 for holding them on the track.

At the upper end of the carrier frame a section 7 6 is deflected from and spaced away from the carrier body to accommodate the upper wheel 77 which also engages the rail flange and is held thereon by its flanges 78. The carrier frame is thus at all times held in diametral position with reference tothe track frame and as the extinguisher is turned the track` frame rotates therewith, but the weights will always cause the carrier frame to keep a vertical position. c

Secured to and extending from one side of the reservoir wall is the bearing bracket- 7 9 whose axis is coincident with that of the track frame. On the opposite wall of the reservoir is secured a bearing bracket 80,V and extending between the brackets is the tubular rod 81 which bears at one end in the bracket 7 9. The bracket 80 has the passageway 82 which receives the other'end of the rod and in the bracket is the conical seat for the conical valve' head 84 on the rod, a spring 85 encircling the rod between the head and the cap 86 which threadsonto the outside of the bracket. The pipe 87' connects at its lower end with the chamber 82 in bracket 8O and extends to the exterior of the reservoir whereit isconnected by coupling 87 with the pipe 48 which leads't'o the nozzle structure chamber 49.

Secured on the rod 8l `adjacent the bracket 7 9 is the enlargement or collar`88 to which is secured the intake pipe 89 vwhich extends downwardly through the passageway 90 formed in theweight 70, the pipe terminating a short distance from the wall of the reservoir. At its upper end the pipe communicates with the passageway 91 extending through the rod 81 to thechamber 82 in bracket 80. In 'the arrangement described the bracket members 79 and 80 turn when the reservoir is turned during use, but the pipe 89 is held in vertical position b v the weight frame. 'As the rod 8l is secured to the pipe 89 there will be relative rotation between it and the bracket members when the extinguisher is turned. and during such relative movement vleakage will times of the weight frame which has the large opening 92 receiving the rod. When the extinguisher' is turned to various angles when in use the inlet vof the pipe 89 will always be close to the reservoir wall so that practically the rentire contents are available in extinguishing a fire; The resistance to movement of the weight carrier 69 is reducedto a'minimum by the wheels engaging on the' track frame and the carrier will therefore quickly respond, as the extinguisher. rotates, to-keep'the inlet end of the pipe 89 below the fluid surface. A

When the extinguisher is not in use `the nozzle 'valve 59 is secured firmly against its seat so that liquid cannot escape. Likewise the escape of liquid `into the pump barrel is-prevented by the double closure of the passageway 34 by the pump and plunger valves, as has already been explained. When it is desired'to use the extinguisher the pump handle is released and thepump can be operated a number of times to corn-4 press theair into the. reservoir, and then the nozzle can be opened by turning the cap 62. rIhe accumulated pressure will then cause the extinguishing fluid to be projected in a long powerful stream from the'nozzle. If desired the nozzle canbe immediately opened and then the pump operated while theextinguisher is being directed tovproject the fluid towards the fire. After use ofthe extinguisher| or when the reservoir becomes empty it can be recharged with fluid through the filler opening which is normally closed byl a plug 93 atthetopof the The fire extinguisher of my invention is very practical and -eilicien't and on:account of itsshape and .the location of the pump at the top of the reservoir, it can be more readily and accurately manipulated than the" cylindrical hand fire extinguishers ofthe prior art.. In suchprior fire extinguishers the inner end of the pump structure isinside of the reservoir where it is immersed in the liquid. Such liquid is usually carbontetrachloride which is very thin and lpene-- trating and would therefore, in such prior structures,V eventually work its way between valve surfaces and escape from the outer `end of the Vpump barrel or plunger tube.

In my improved arrangement the pump operating parts are outside of the-,reservoir entirelyaway from the liquid. There is ico v therefore no chance for the Vluid to ceca-pe and leakage and evaporation are eliminated. The extinguisher will therefore always be in good working order and ready for instant use. The extinguisher is also constructed entirely of metal and there are no parts which couldbe attacked, deteriorated or destroyed bythe extinguisher fluid.

I do not desire to be 'limitedto the exact construction, arrangement and operation shown and described as changes and modi iications are possible which -would still come within the scope ot my invention.

I claim as follows:

l. Ina fire extinguisher, the combination of a reservoir having a semi-cylindrical lower end, an air pumpextending horizontally at the upper end of said reservoir, a connection for conducting the pumped air into said reservoir, a circular track frame seated in said cylindrical bottom concentric therewith, a carrier frame ridable .on said track frame, said carrier frame being weighted at one end whereby such end will always be at the bottom part of the reservoir when the extinguisher is rotated during use, van intake pipe carried with said weighted end, a nozzle at the front rend of said air pump, and a connection between said nozzle and intake pipe for conducting Huid from said'intake pipe to .sa ill nozzle` 2. In a fire extinguisher, the combination of a fluid reservoir having a semi-cylindrical lower end with its axis horizontal, an air pump at the upper end of said reservoir extending transversely thereof, a connection for conducting the pumped air into said reservoir, a track frame secured within said reservoir concentric with said seini-cylindrical bottom, a carrier extending diametrally with reference to said track frame, track rollers on said carrier 'for riding on said track frame whereby said carrier :may revolve on the axis of said track frame, a weight at one end of vsaidy carrier, the weighted end ot said carrier being valways down when said reservoir is rotated during use of the extinguisher, Ya .fluid intake at said weighted end adjacent the bottom 'of said reservoir as it is rotated, a nozzle on'the front end of said air pump, anda connection betweenv said nozzle and intake for thetrans' mission of fluid.

3. In a fire extinguisher, the combination of a fluid reservoir, 'anair pump associated therewith, a connection for 'conducting'the pumped air into said reservoir, a circular track within said reservoir in the plane of said pump, a weighted 'carrier frame, track wheels mounting said carrier 'frame on sa-id track, said carrier having an intake passageway, a nozzle on the end of said'pump, and a connection between Vsaid nozzle 'and intake passageway, said carrier frame traveling on said track to keep said intake passageway at the bottom of 'the liquid when the extinguisher is rotated to direct fluid 'upwardly or downwardly.

et. --In aire extinguisher, the combination of a fluid reservoir, an air pump associated therewith, a connection for conducting the pumped air into said reservoir, an annular track in said reservoir arranged in the plane of said pump axis, a weighted carrier mounted on said track to ride thereon when the extinguisher is inclined, said carrier having an Vintake passageway with its outer end adjacent the'reservoir -walls when the extinguisherisinclined, a nozzle, and a connection ,for conductingflulid from said intake tosaid nozzle. Y

5. Ina tire extinguisher, the combination of a' fluid reservoir, a pump for pumping air,a connection for conducting the pumpedL air into said reservoir, an annular track within sa-idreservoir having its axis at right angles with that of the pump, a weighted carrier, track wheels 'for mounting said carrier on said track, said carrier having a fluid intake passageway, a nozzle on said pump, and a connection forfconducting fluid from said intake to said nozzle, said intake being carried with said vcarrier when said extinguisher is inclined to direct fiuid upwardly or downwardly.

6. In. a lire extinguisher, thejcombination of a reservoir, an air pump, means for conducting the pumped air into said reservoir, an annular track secured in said reservoir,

a carriage mounted lon ysaid track, said car-` riage being weighted whereby to remain at the `bottom -of said track when said extinguisher is inclined, saidvcarrier having a fluid intake passageway, a nozzle at the outer end of said pump, and a connection for conducting fluid from said intake to said nozzle. Y

7. In a iire extinguisher, the combination of a reservoir, an air pump associated with said reservoir, a connection for conducting the pumped air into said reservoir, a curved track in said reservoir concentric with the n bottom thereof, a weighted carriage mounted on said track, said carriage having an intake passageway, a nozzle on said pump, and a connection for conducting yfluid from saidv with said carriage, a nozzle'at the exterior f of Vsaid'.reservoir, and a connection between said pipe and "said nozzle, fluid flowing through 'said 'intake "extension, and Saidpipe to said nozzle, said weighted carriage keeping said intake extension near the bottom of the reservoir when theextinguisher is inclined.

9. In a fire extinguisher, the combination of a reservoir, an air pump associated therewith, a connection for conducting the pumped air into said reservoir, an annular track secured in said reservoir, a weighted carrier mounted on said track, said carrier remaining at the bottom of said track when said extinguisher is inclined,` abearing support in said reservoir having a passageway, a pipe extending through the center of said track and at right angles thereto, a joint connecting said pipe with said bearing support, an intake pipe extending radially from said pipe and connected with said carrier, a nozzle at the exterior of said reservoir, and a connection between said bearing support passageway and said nozzle, fluid flowing through said pipes and said passageway and connection to the nozzle, said intake pipe being swung as the carrier travels during inclination of the extinguisher to be thereby kept below the surface of the fluid in the extinguisher.

10. In a fire extinguisher, the combina-- tion of a fluid reservoir, an air pump associated therewith, a connection between said air pump and reservoir for conducting the pumped air thereto, a circular track se` cured in said reservoir with its axis at right angles to that of the pump, a carrier mounted on said track, said carrier being weighted to thereby7 remain at the bottom of the track when the extinguisher is inclined, bearing brackets secured in said reservoir in the center line of said track, a pipe rotatably journaled in said brackets and extending through the track center, an intake pipe secured to said rotatable pipe and extending radially therefrom and connected with said carrier, one of said bearing brackets having a passageway communicating with said rotatable pipe, a nozzle on said pump, and a `connection between said nozzle and bearing bracket passageway for the flow of fluid.

11. In a fire extinguisher, the combination of a fluid reservoir, an air pump associated therewith, a connection for conducting the pumped air into said reservoir, a circular track secured in said reservoir, a carrier mounted on said track to travel thereon as the extinguisher is inclined, said carrier -being weighted to remain at the bottom of the track when the extinguisher is inclined, a bearing bracket supported within the reservoir in the center line of said track and having a passageway, a pipe supported in said bracket to be rotatable in the center line of said track, said rotatable pipe communicating with said bracket pas sageway, said bracket having a coupling sociated therewith, a connection for cou"- ducting the pumped air into said reservoir, a 'circular track in saidreservoir extending along the bottom thereof, a carrier mounted to travel on said track, said carrier being weighted to remain at the bottom of the track when the extinguisher is inclined, bearing brackets extending from the opposite sides of said reservoir in line with the track center, a tubular rod j ournaled at its ends in said bearing brackets, one of said brackets havingv a chamber, an intake pipe extending from said rod and connected with said carrier, said rod having a passageway connecting said intake pipe with said bearing bracket chamber, a nozzle at the endv of said pump for directing fluid, a connection between said nozzle and said chamber, and means for preventing leakage from said chamber past said rod.-

13. In a lire extinguisher, the combination of a fluid reservoir, an air pumpassociated with said reservoir, an air chamber at the outer end of said pump and a connection for connecting it with the interioz` of said reservoir whereby pumped air is forced into the reservoir 'to exert pressure on the fluid therein, a frame supported on the outer end of said pump, a partition' dividing said frame into a lluid chamber and a nozzle chamber, a connection for conducting lluid from said reservoir to said fluid chamber, passageways in said partition, a nozzle in said nozzle chamber, said nozzle forming a valve for controlling said partition passageways, and means for adjusting said nozzle to open or close said passageways.

14. In a lire extinguisher, the combination of a fluid reservoir, an air pump as sociated with said reservoir, an air chamber at the outer end of the pump barrel, a connection between said air chamber and the interior of said reservoir for conducting compressed air into said reservoir, a frame mounted on the outer end of said pump barrel and forming the outer closure wall of said air chamber, a partition dividing said frame into a fluid chamber and a nozzle chamber, a connection between ,said fluid chamber and said reservoir for the llo-w of fluid, said partition `having passageways, a nozzley plug in said nozzle chamber having a valve base, and means Jfor adjusting said nozzle plug to cause its base to open or close said fluid passageways.

l5. In a lire extingmisher,A the combination of a fluid reservoir, an air pump associated therewith having an air chamber at the end of its barrel, a connection be tween said air chamber and said reservoir for conducting the pumped air into the reservoir, a Jframe on the endof said pump barrel forming the outer wall of saidr air chamber, a partition in said frame dividing it into a fluid chamber and a nozzle chamber, the fluid chamber being entirely disconnected from the air chamber, a connection between the Huid chamber and the reservoir for the outflow` of -fluid, passageways in said partition, a nozzle plug in said nozzle chamber having threaded engagement therein to be axially shifted, the base of said nozzlel plug forming a Valve for cooperating with said partition passageways, and a head connected with said nozzle for effecting rotation thereof and thereby axial adjustment to control the How of fluid through said passageways and said WILLIAM J. FRISBIE. 

